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Added support for Minisat::SimpSolver + ezSAT frezze() API

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This commit is contained in:
Clifford Wolf 2014-02-23 01:35:59 +01:00
parent b76528d8a5
commit dab1612f81
5 changed files with 79 additions and 11 deletions
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33
libs/ezsat/ezsat.cc
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@ -29,18 +29,18 @@ const int ezSAT::FALSE = 2;
ezSAT::ezSAT()
{
literal("TRUE");
literal("FALSE");
assert(literal("TRUE") == TRUE);
assert(literal("FALSE") == FALSE);
cnfConsumed = false;
cnfVariableCount = 0;
cnfClausesCount = 0;
solverTimeout = 0;
solverTimoutStatus = false;
freeze(literal("TRUE"));
freeze(literal("FALSE"));
assert(literal("TRUE") == TRUE);
assert(literal("FALSE") == FALSE);
}
ezSAT::~ezSAT()
@ -345,6 +345,10 @@ void ezSAT::clear()
cnfAssumptions.clear();
}
void ezSAT::freeze(int)
{
}
void ezSAT::assume(int id)
{
cnfAssumptions.insert(id);
@ -462,6 +466,23 @@ int ezSAT::bound(int id) const
return 0;
}
std::string ezSAT::cnfLiteralInfo(int idx) const
{
for (size_t i = 0; i < cnfLiteralVariables.size(); i++) {
if (cnfLiteralVariables[i] == idx)
return to_string(i+1);
if (cnfLiteralVariables[i] == -idx)
return "NOT " + to_string(i+1);
}
for (size_t i = 0; i < cnfExpressionVariables.size(); i++) {
if (cnfExpressionVariables[i] == idx)
return to_string(-i-1);
if (cnfExpressionVariables[i] == -idx)
return "NOT " + to_string(-i-1);
}
return "<unnamed>";
}
int ezSAT::bind(int id)
{
if (id >= 0) {